Scott Masters has been charged with felony second-degree robbery. He is accused of slipping a 52-cent doughnut into his sweat shirt without paying last December and then pushing away a clerk who tried to stop him. The push is being treated as minor assault, which transforms a misdemeanor shoplifting charge to a strong armed robbery with a potential prison term of five to 15 years. Given Masters' criminal past, prosecutors could boost that sentence to 30 years to life. The 41-year-old Masters has been arrested more than a dozen times for crimes ranging from shoplifting to drug possession to torching a car for insurance fraud.